101Leafy researched the games.
Tarnished Sword
A tarnished Sword that isn't good for much as-is. But if you polish it...
| Class | Sword |
|---|---|
| Rarity | 1 |
| Attack | 140 |
| Slots | 0 |
| Price | 2,500z |
Upgrades
| Upgraded from | Rusted Sword |
|---|---|
| Upgrades into | Eternal Strife, Steel Ice Dagger |
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 706.